Celtic could face Zalgiris Vilnius or Astana in the third qualifying round of the Champions League if they can turn around the 1-0 defeat to Lincoln Red Imps in midweek.
The Scottish champions were defeated by the semi-pro Gibraltar side on Tuesday night in the first leg tie, a result that shocked many in the game.
Lithuanian side Zalgiris and Astana of Kazakhstan are tied at 0-0 ahead of the second leg of their tie on Wednesday.
The winners of the third qualifying round progress to the Champions League play-off round, one stage before the group stages of the competition. The team that loses will drop into the play-off round of the Europa League.
Winners at the Champions League play-off round secure qualification to the group stage with the losing side dropping into the Europa League group stage.
